Update from chromium https://crrev.com/301725/

cc/trees/thread_proxy.cc

Index: cc/trees/thread_proxy.cc
diff --git a/cc/trees/thread_proxy.cc b/cc/trees/thread_proxy.cc
index 429b587a8adea723037dbd54dde59c72a48815f6..f5496f846f50cf32d90450e0243e45943488b30d 100644
--- a/cc/trees/thread_proxy.cc
+++ b/cc/trees/thread_proxy.cc
@@ -107,7 +107,6 @@ ThreadProxy::CompositorThreadOnly::CompositorThreadOnly(
       next_frame_is_newly_committed_frame(false),
       inside_draw(false),
       input_throttled_until_commit(false),
-      did_commit_after_animating(false),
       smoothness_priority_expiration_notifier(
           proxy->ImplThreadTaskRunner(),
           base::Bind(&ThreadProxy::RenewTreePriority, base::Unretained(proxy)),
@@ -937,7 +936,6 @@ void ThreadProxy::ScheduledActionAnimate() {
   impl().animation_time =
       impl().layer_tree_host_impl->CurrentBeginFrameArgs().frame_time;
   impl().layer_tree_host_impl->Animate(impl().animation_time);
-  impl().did_commit_after_animating = false;
 }
 
 void ThreadProxy::ScheduledActionCommit() {
@@ -951,8 +949,6 @@ void ThreadProxy::ScheduledActionCommit() {
   impl().current_resource_update_controller->Finalize();
   impl().current_resource_update_controller = nullptr;
 
-  impl().did_commit_after_animating = true;
-
   blocked_main().main_thread_inside_commit = true;
   impl().layer_tree_host_impl->BeginCommit();
   layer_tree_host()->BeginCommitOnImplThread(impl().layer_tree_host_impl.get());
@@ -1020,11 +1016,6 @@ DrawResult ThreadProxy::DrawSwapInternal(bool forced_draw) {
   impl().timing_history.DidStartDrawing();
   base::AutoReset<bool> mark_inside(&impl().inside_draw, true);
 
-  if (impl().did_commit_after_animating) {
-    impl().layer_tree_host_impl->Animate(impl().animation_time);
-    impl().did_commit_after_animating = false;
-  }
-
   if (impl().layer_tree_host_impl->pending_tree())
     impl().layer_tree_host_impl->pending_tree()->UpdateDrawProperties();